{"product_id":"square-d-lja36400u33x-400a-3p-600v-circuit-breaker","title":"Square D LJA36400U33X 400A 3P 600V Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Square D LJA36400U33X—a robust circuit breaker designed for reliable protection in panelboards, load centers, and electrical distribution systems. With a 400 A rating, 3 poles, and a 600 V capacity, it’s built to handle demanding three‑phase applications while maintaining dependable performance across your electrical infrastructure.\u003c\/p\u003e \u003cp\u003eWhy this matters: when maintenance or expansion requires a direct part-number match, this LJA36400U33X from Square D ensures compatibility and quick replacements, minimizing downtime and simplifying spare inventory management for teams and contractors.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eDirect part-number match\u003c\/strong\u003e: A precise replacement component that aligns with existing panels and assemblies, reducing guesswork during maintenance.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eHigh-capacity protection\u003c\/strong\u003e: 400 A rating safeguards feeders and distribution circuits from overloads, while 3 poles provides balanced protection for three‑phase systems.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eWide compatibility\u003c\/strong\u003e: Suitable for panelboards, load centers, and electrical distribution networks, supporting both retrofit and new installations.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eProactive stocking\u003c\/strong\u003e: Ideal for spare inventory—keep critical protection ready to deploy when emergencies hit.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eTrusted heritage\u003c\/strong\u003e: Square D is known for durable, dependable protection devices—backed by AmpState availability.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eKey specifications\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eManufacturer: Square D\u003c\/li\u003e \u003cli\u003ePart Number: LJA36400U33X\u003c\/li\u003e \u003cli\u003eProduct Type: Circuit Breaker\u003c\/li\u003e \u003cli\u003eAmperage: 400 A\u003c\/li\u003e \u003cli\u003ePoles: 3\u003c\/li\u003e \u003cli\u003eVoltage Rating: 600 V\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eIdeal for\u003c\/strong\u003e: maintenance technicians, panel builders, electrical distributors, and facility managers who need a reliable, exact-fit protection device for three-phase systems.\u003c\/p\u003e \u003cp\u003eNeed help confirming fit? Message us and we’ll help verify compatibility with your specific panel or distribution setup.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"AmpState","offers":[{"title":"Default Title","offer_id":46412391350434,"sku":"LJA36400U33X","price":17739.0,"currency_code":"CAD","in_stock":true}],"url":"https:\/\/www.ampstate.com\/products\/square-d-lja36400u33x-400a-3p-600v-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}